Students who survived the Florida school shooting are preparing to flood the Capitol pushing to ban the assault-style rifle used to kill 17 people, vowing to make changes in the November election if they can't...

Students who survived the Florida school shooting are preparing to flood the Capitol pushing to ban the assault-style rifle used to kill 17 people, vowing to make changes in the November election if they can't persuade lawmakers to change law now.

Your Facebook news feed says you need to post a legal notice or you'll lose copyright control of your pictures and other content you share with your circle of family and friends.

Or maybe Facebook is going to charge you to keep your profile private.

It's a hoax, folks, and people are falling for it all over again. Check you news feed, it's probably there somewhere.

Here's part of one of the versions floating around.

"Now it's official! It has been published in the media. Facebook has just released the entry price: $5.99 to keep the subscription of your status to be set to 'private.' If you paste this message on your page, it will be offered free (paste not share) if not tomorrow, all your posts can become public. Even the messages that have been deleted or the photos not allowed. After all, it does not cost anything for a simple copy and paste."

Staying power

Say what you will, but this little social media deception seems to push all the right buttons of those who are concerned about privacy and fear Big Brother's prying eyes.

This is at least its third go-round.

The last big flareup was in January. There was another one in 2012. And Internet rumor site Snopes.com documents another variation dating back to 2009.

Facebook has denied the rumors all along the way and did so again on Monday, playing on legitimate news of the day from NASA.

"While there may be water on Mars, don't believe everything you read on the Internet today. Facebook is free and it always will be," the company said. "And the thing about copying and pasting a legal notice is just a hoax. Stay safe out there Earthlings!"

Facebook also commented on the hoax in a 2012 post: "There is a rumor circulating that Facebook is making a change related to ownership of users' information or the content they post to the site. This is false. Anyone who uses Facebook owns and controls the content and information they post, as stated in our terms."

Still not satisfied?

Here's language from Facebook's actual terms of service -- it's in the section you have to agree to, but never read, when you sign up.

"You own all of the content and information you post on Facebook, and you can control how it is shared through your privacy and application settings."

Really, it's pretty clear, but we'll be back in a few months to write another story when it circulates again.